% The CREWES Migration toolbox
%
% This is a collection of textbook seismic migration routines that has been
% used for instructional purposes. Algorithms include f-k, Kirchhoff, and
% phaseshift migrations. Also includes f-k transforms.
%
% blimpulse   --- Generate a unit spike at a particular point in a zero
%                 matrix
% clinint     --- Complex linear interpolation 
% csinci      --- performs 8 point sinc function interpolation
% event_dip   --- inserts a dipping (linear) event in a matrix
% event_hyp   --- inserts a hyperbolic event in a matrix
% event_spike --- inserts a spike event in a matrix
% fkmig       --- post stack migration in the frequency wavenumber domain
% fxtran      --- performs a 2-d f-k transform
% fxtran_mc   --- slower but less memory needed then fxtran
% hyperbola   --- Generate a set of unit spikes at an approximate 
%                 hyperbolic trajectory
% ifktran     --- 2-d inverse f-k transform
% ifktran_mx  --- slower but less memory needed than ifktran
% kirk        --- simple post stack Khirchoff time migration routine
% kirkcv      --- constant velocity post stack Khirchoff time migration
% kirksinc    --- post stack Khirchoff time migration using sinc
%                 function sample interpolation
% sectconv    --- convolves a wavelet with a seismic section
% sectfilt    --- pplies a bandpass filter to a seismic section
% kirk_mig    --- Kirchhoff time migration routine
% psmig       --- phase shift time migration
% conv45      --- 45 degree phase shift
% 
% (C) The CREWES Project, 1996  
%
% NOTE: It is illegal for you to use this software for a purpose other
% than non-profit education or research UNLESS you are employed by a CREWES
% Project sponsor. By using this software, you are agreeing to the terms
% detailed in this software's Matlab source file.
 
% BEGIN TERMS OF USE LICENSE
%
% This SOFTWARE is maintained by the CREWES Project at the Department
% of Geology and Geophysics of the University of Calgary, Calgary,
% Alberta, Canada.  The copyright and ownership is jointly held by 
% its author (identified above) and the CREWES Project.  The CREWES 
% project may be contacted via email at:  crewesinfo@crewes.org
% 
% The term 'SOFTWARE' refers to the Matlab source code, translations to
% any other computer language, or object code
%
% Terms of use of this SOFTWARE
%
% 1) Use of this SOFTWARE by any for-profit commercial organization is
%    expressly forbidden unless said organization is a CREWES Project
%    Sponsor.
%
% 2) A CREWES Project sponsor may use this SOFTWARE under the terms of the 
%    CREWES Project Sponsorship agreement.
%
% 3) A student or employee of a non-profit educational institution may 
%    use this SOFTWARE subject to the following terms and conditions:
%    - this SOFTWARE is for teaching or research purposes only.
%    - this SOFTWARE may be distributed to other students or researchers 
%      provided that these license terms are included.
%    - reselling the SOFTWARE, or including it or any portion of it, in any
%      software that will be resold is expressly forbidden.
%    - transfering the SOFTWARE in any form to a commercial firm or any 
%      other for-profit organization is expressly forbidden.
%
% END TERMS OF USE LICENSE
